Propeller



April 2, 0- w. G. CORSON 2,196,104

PROPELLER} Filed June 18, 1956 [Mazda]:- W LLMM 6i Caeso/v,

Patented Apr. 2, 1940 v UNlT S'lA'lEd 2,196,104

PROPELLER. I William G. Oorson, Akron, Ohio Application June 18, 1936, Serial No. 85,927

3 Claims. (Cl. 170-151) The present invention relates to a rotary prcare in the same horizontal plane-while the blades peller or fan construction consisting of compo- A and B, at the top, are each in its own horizontal nent parts wherein the blades are mounted on plane, and the position of the other blades are each componentpart on lines that are off center shown in their respective planes about the cen- '5 with respect to each other. ters. The number of blades that may be placed Other objects and advantages will become apon each component part is not restricted in numparent as the description proceeds in which: her but each component part should contain the Figure 1 is an end view of one component part same number of correspondingblades. of the propeller, The line of force, as well as the rotation of the Figure 2 is an end view of the other component component parts, is controllable by means to be 10' D subsequently described and the line of force is Figure 3 is an end view showing one compocapable of being changed anywhere along the nent part provided with six blades with thehladeo circumference or" the travel of the blades as to positioned oif center lines of the hexagonal con be hereinafter set forth. When applying meter point, chanical power in any conventional manner to 15" Figure 4 is an end view of the two component the blade shaft, the direction of force may change parts in alignment and showing the relative pcfrom the top of the component parts, as shown sitions or the blades of the respective parts in in Figure 5, to the bottom of said component respect to the axes, parts, as shown in Figure 6, by operating the Figure 5 is a View looking at right angles to lever 6 to change the position of theeccentric 30 Figure device subsequently to be described. However, Figure 6 is a view taken on an angle of 186 while the line of force is changed by such an opof Figure 5 when eccentric is changed, eration, the rotation of the component parts is Figure '7 shows a component member provided not changed but continues the same regardless with more than one blade on its arms, and of what angle along the circumference the line 25 Figure 8 shows a curved blade adapted for use of force is presented to the blades of the compoin the present invention. I nent parts. When a natural fluid force is applied In the drawing, the component parts, 2 and 3, to the blades, the line of force is shown at Figure forming the assembled propeller unit, are each 4 as being at the top and will cause rotation in provided with blades A and B mounted on .the one direction. However, by operating the eccen- 30 ends of arms 4 and 5, respectively. The arms 4 tric 180 degrees, as shown in Figure 6, the line of and 5 are one-half the width of the blades A force is changed to thebottom and will cause a and B from the center of the component parts. rotation of the blades and component parts in The arms 5 carrying blades B are longer than the opposite direction. the arms 4 by one-half the width of the blades. In Figure 4, the force lines are clearly shown. The arms 4 and 5 are mounted, on the parts 2 The width of areas S-TU-V are greater than and 3, on the opposite sides to the relative posithe width of areas W-X-Y-Z and the angle of tions necessary to allow the two component parts Contact on the opposite blades are approximately 2 and 3 to rotate freely when assembled and the equal. It is, therefore, apparent that a force component parts .2 and 3 are made identical but applied to the wheel assembly and as shown by 40 take the positions shown, in Figures 4 to 6 inthese force lines, will rotate the component parts clusive, when inverted with respect to each other in the direction of the arrow in the upper left and assembled. It is to be noted thatthc cenhand side. However, if the eccentric is rotated ters C and D of the two component parts are one-half turn, the blades assume a position relaspaced apart one-half the width of a blade. tive to each other as clearly shown in Figure 6, 45

In the showing of Figure 3, there is provided a which would result in the rotation of said c0mcomponent part having six blades of four ponent parts in an opposite direction to that just and it i be noted that the M36195 l'JOSidescribed. .When the blades are in the same tio-ned off center lines as illustrated by the hexa- -plane, the blade that follows is useless in giving gon construction. In Figure 4, the two compoor receiving pgwgp a nent parts having six blades are shown in align- If an outside power is applied to cause the ment. The relative position of the blades with component parts to rotate, then the force or flow respect to the centers, and with respect to each of pressure from. the upper force areas in Figure componently, will become readily apparent. In 4 would be greater than that given in the lower this showing, the blades A and B at the bottom force. areas; but as shown in Figure 6, if the rela- 55 tlve positions of the component parts are changed, the greater flow would be in an opposite direction, or in whatever direction the eccentric is set by the operation.

The eccentric means for changing the relative positions of the component parts with respect to each other comprises a universal joint 1, secured to the inside center of the component part 3, While on the inside center of component part 2 there is provided a universal joint 8 and a con necting rod 9 between the two universal joints. Between a standard [0 and the component part 2, is mounted the eccentric operating lever B, which has its center on the center line of one of the component parts. The center of the component part 2 is mounted on this eccentric lever 6 at l2, which point is distant from the center line D of component part 3 by one-half the width of a blade. By moving the eccentric lever 5 upon its axis at the center line D, the relative position of the point [2 or the center line of component part 2 will change. While I have shown, for the purpose of illustration, a standard for mounting the component parts 2 and 3, and the universal connection so that these parts will rotate simultaneously and in agreed positions, other mechanims may be used to rotate the component parts 2 and 3 simultaneously and in agreed positions.

The change of direction of the force is accomplished by rotating the eccentric lever 6 to change the relative position of the blades A and B on the component parts and not by stopping and changing the direction or rotation of the wheel. Nor is it necessary to change the speed of rotation to obtain a difierent direction of force. Some of the many uses for which this invention may be adapted are such as airplane and airship propellers, windmills, ventilators, blowers, boat propellers, etc.

While I have shown and described one specific embodiment of the invention, it will be understood that I do not wish to be limited exactly thereto, since various modifications may be made Without departing from the scope of the invention as defined by the following claims.

I claim:

1. A rotating propller comprising a shaft, complemental blade supporting means mounted on said shaft, a plurality of blades mounted on each of said complementa-l supporting means cooperating with each other, one of said complemental blade supporting means being eccentrically mounted on said support with respect to the other blade supporting means so that the coacting blades overlap each other at one point and are in alignment at a point diametrically opposite the point of overlap.

2. A rotating propeller comprising a shaft, complemental blade supporting means mounted in inverted positions with respect to each other on said shaft and coacting blades mounted on said complemental supporting means, one of said complemental blade supporting means being eccentrically mounted on said shaft with respect to the other blade supporting means so that the coacting blades overlap each other at one point and are in alignment at a piont diametrically opposite the point of overlap, and means for rotating the eccentric to change the direction of rotation of the propeller.

3. A rotating propeller comprising a shaft, complemental blade supporting means mounted in inverted positions with respect to each other on said shaft and coacting blades mounted on said complemental supporting means, one of said complemental blade supporting means being eccentrically mounted on said shaft with respect to the other blade supporting means so that the coacting blades overlap each other at one point and are in alignment at a point diametrically opposite the point of overlap and means for rotating the eccentric to change the position of the blades on said eccentrically mounted supporting means relative to the blades on said other supporting means so as to change the direction of force of said propeller.

WILLIAM G. CORSON. 

